Interchangeable plug device



FIG. 1 is a top view of the invention;

FIG. 2 is a bottom view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a front and upper right perspective view thereof; and,

FIG. 8 is a rear and upper left perspective view thereof. 

The ornamental design for an interchangeable plug device, as shown and described. 